Have been using U98 main with a few U38 family share lines for a few months, with the U38 sims as modem-exclusive hotspot only usage.
Everything was working until today, where the modem shows network service is available but the devices connecting to the modem/router can't access internet.

Changing the U38 sims to mobile phones shows no issue connecting to internet.

Called customer service, was advised that family share internet quota is only for mobile phone.
Following the advise, I went to get a Broadband 68 plan. Put the sim back into modem, Still no internet.

So frus. Any idea what went wrong?

(modem restarted, checked APN, no maintenance in area, no firmware update, all the standard things have been done so please skip those kind inputs tq).